Ture of fertilizers



tanned $158M "am mm,

To all whom it may concern CHARLES U. SHEPARD, JR., OF CHARLESTON, SOUTH CAROLINAfASSIGNOR To GEORGE s. sooTT, OF NEW YORK, N. Y.

. Letters Patent No. 100,457, dated March 1, 1870.

IMPROVEMENT IN PREPARING AMMONIA'I'Eb SULPHURIG ACID FOR THE MANUFAC- TUBE OI 'PERTILIZERS.

The Schedule referred to in these Letters Patent and making of the same.

Be it known that 1, CHARLES U. SHEPARD, J12, of the city-and county of Charleston, and State of South Carolina; hare-invented an Improved Process for Propaling Ammoniated Sulphuric Acid for admixture with phosphates in the manufacture of'manures', of

' which thefollowing is a specification.

My invention. relates to an improved process for treating the ammoniacal distillate of the ammoniacal water oi" gas-works with sulphuric acid for admixture with phosphatic material in the manufacture of, manure.

I propose to mix qnickli'me, or other equivalent material, with the ammoniacal water of gas-works, and

apply heat thereto for the purpose of liberating the ammonia, which is carried over as a gas and absorbed by sulphuric acid; not, however, for the immediate or ultimate production of a dry salt of ammonia, as I by that portionof ammonia. which has been combined with the acid. a

Thesame process may be applied to the combination of ammonia'produced by liberation from boneblack, or other. aminoniacal material, by familiar-processes; the gas thus produced is to be treated in the the production of salts of ammonia, for this I know bytreating ammoniacal water with lime or other libcrating material, or by theliberation ot'ammoniafrom hone-blacker other ammoniacal matter, and the absorption of such ammouiacal gas or vapor by sulphuric acid, in such proportions as to leave a part of the sulphuric acid uncombined, substantially as set forth.

' 2. The treatment of phosphatic material with such ammoniated sulphuric acid for the production of an ammoniatcd super-phosphate,-substantially as set forth.

In'testimony'whereof I have, signed mylname to this specification in the presence of two subscribing Witnesses.

. CHARLES U. SHEPARD, JR.

Witnesses:

. D. J ENNINGS,

F. STREET BURDELL. 

